Mobile device calls via private branch exchange

Details Mobile device calls via private branch exchange Mobile device calls via private branch exchange

2011-01-25

2011-01-25

Elahee, M D S (Department: 2614)

Telephonic communications

Special services

C379S202010, C379S207010, C370S259000, C370S260000, C370S352000, C455S414100, C455S416000

Reexamination Certificate

active

07876888

ABSTRACT:
Communication systems and methods are described that enable mobile devices to route telephone calls via an enterprise telephone system. The communication system is configured to receive via a data channel a request from the mobile device. The mobile device corresponds to a user making a call. The server receiving the request includes a private branch exchange (PBX) and one or more other servers hosted by or coupled to the enterprise. A first call leg is initiated over a first voice channel in response to the request. The first call leg is coupled to the server and mobile device. A second call leg is initiated over a second voice channel, and the second call leg is coupled to the server and a client device corresponding to an intended call recipient. A voice conference call is formed between the mobile device and client device by joining the first and second call legs.

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